PNP_UNREGISTER_PROTO(9) Device drivers infrastructure PNP_UNREGISTER_PROTO(9)NAME
pnp_unregister_protocol - removes a pnp protocol from the pnp layer
void pnp_unregister_protocol(struct pnp_protocol * protocol);
pointer to the corresponding pnp_protocol structure
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 PNP_UNREGISTER_PROTO(9)
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PNP(4) BSD/i386 Kernel Interfaces Manual PNP(4)NAME
pnp -- support for ``Plug and Play'' (PnP) ISA devices
The pnp driver enumerates ISA devices which support ``Plug and Play ISA Specification'' in the system. It assigns ISA bus resources (inter-
rupt line, DMA channel, I/O ports, and memory region) to each device and activates it.
If it cannot assign necessary resources to a PnP ISA device without causing conflict with other devices in the system, the device will not be
activated and will be unavailable to programs.
It is not possible to disable individual PnP ISA devices. The pnp driver will find all devices conforming the PnP ISA specification and try
to activate them all.
There is no way to explicitly assign particular resource to the PnP ISA device. The resource assignment is fully automatic and there is no
provision for manual override.
SEE ALSO pnpbios(4)STANDARDS
Intel and Microsoft, Plug and Play ISA Specification, Version 1.0a, May 5, 1994.
Clarifications to the Plug and Play ISA Specification, Version 1.0a, December 10, 1994.
The pnp driver first appeared in FreeBSD 2.2.5. It has been substantially updated in subsequent versions.
PnP support was originally written for FreeBSD 2.2.5 by Luigi Rizzo, based on initial work done by Sujal Patel.
BSD September 20, 2001 BSD
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